Production and purification of 2‐phenylethanol by Saccharomyces cerevisiae using tobacco waste extract as a substrate

Author(s):  
Jianbin Ye ◽  
Shu Tian ◽  
Liwen Lv ◽  
Yilang Ding ◽  
Jia Xu ◽  
...  
2014 ◽  
Vol 99 (1) ◽  
pp. 469-476 ◽  
Author(s):  
Huagui Liu ◽  
Houlong He ◽  
Changhe Cheng ◽  
Jinli Liu ◽  
Ming Shu ◽  
...  

2017 ◽  
Vol 29 (1) ◽  
pp. 17
Author(s):  
Harlina Kusuma Tuti ◽  
Retno Wijayanti ◽  
Supriyadi Supriyadi

<p><em>Nilaparvata lugens Stal.is one of plant pest which damages rice field. The waste of tobacco contains nicotine which can use as botanical insecticide. This research was aimed to find out the effectiveness of tobacco waste in controlling brown planthopper and its effect then predator (Oxyopes javanus). The methode of this research applies Completed Randomized Design experiment. In this research, used the kind of tobacco waste and various concentration with triple repeating. The variables of this research</em><br /> <em>were mortality and death period of brown planthopper, mortality and eating capability of O. javanus viewed from direct and indirect application. The concentration 12,5% of tobacco roots extract cause mortality of brown planthopper reaches 93%. Furthermore, the concentration 12,5% of tobacco root extracts made the death period of brown planthopper faster than the other concentrations. Direct application of tobacco waste extracts did not cause of O. javanus. Indirect application of tobacco waste extract did not cause of death toward O. javanus, but caused eating capability of O .javanus. Extract from tobacco bark with concentration 3,125% dan 1,56% had the power repellent which was shown by O. javanus only eat 2,33 brown planthoppers per week.</em></p>


2017 ◽  
Vol 64 (6) ◽  
pp. 843-850 ◽  
Author(s):  
Jianbin Ye ◽  
Zhan Zhang ◽  
Ji Yan ◽  
Hui Hao ◽  
Xiangzhen Liu ◽  
...  

2020 ◽  
Vol 84 (7) ◽  
pp. 1521-1528 ◽  
Author(s):  
Fang Liu ◽  
Xiaoping Zhang ◽  
Mingdao Wang ◽  
Lele Guo ◽  
Yingyue Yang ◽  
...  

2007 ◽  
Vol 34 (8) ◽  
pp. 567-570 ◽  
Author(s):  
Y. J. Yuan ◽  
Z. X. Lu ◽  
L. J. Huang ◽  
Y. Li ◽  
F. X. Lu ◽  
...  

2019 ◽  
Vol 13 (01) ◽  
pp. 75
Author(s):  
Andi Eko Wiyono ◽  
Winda Amilia ◽  
Ida Bagus Suryaningrat

Liquid body soap is one of the soap products made from a mixture of oil and alkali in liquid form. Addition of tobacco extracts produces liquid body soap which has new characteristics. The existence of tobacco waste extracts can affect the level of consumer acceptance. The level of acceptance of panelists can be measured using hedonic testing. The purpose of this study was to determine the effect of adding tobacco waste extract to the reception of liquid body soap sensory quality attributes and calculating the cost of production. This research was conducted in two steps. The first stage was intended to determine the best formula based on panelists' acceptance. The design that has been used was the single factor Complete Random Design. The factors used in this study were variations in tobacco extract as much as 5%, 10%, and 15%. In the next stage, the cost of production was analyzed. The results showed that the addition of tobacco waste extract had no significant effect on panelists' acceptance of the sensory quality attributes of liquid body soap. The best treatment was obtained from the addition of tobacco waste extract as much as 5%. The cost of producing liquid body soap was Rp. 9.075,44. Consecutive total costs/ year, selling price, annual profit., and R / C ratio was Rp. 984.023.244,-; Rp. 11.000, -; Rp. 208.673.756,-; and 1,21. Keywords: panelists, tobacco extracts, sensory quality, cost of production


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